MUTEX_TRYLOCK(9) Mutex API reference MUTEX_TRYLOCK(9)
mutex_trylock - try to acquire the mutex, without waiting
int __sched mutex_trylock(struct mutex * lock);
the mutex to be acquired
Try to acquire the mutex atomically. Returns 1 if the mutex has been acquired successfully, and 0 on contention.
this function follows the spin_trylock convention, so it is negated from the down_trylock return values! Be careful about this when
converting semaphore users to mutexes.
This function must not be used in interrupt context. The mutex must be released by the same task that acquired it.
Rusty Russell <email@example.com>
Kernel Hackers Manual 3.10 June 2014 MUTEX_TRYLOCK(9)